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(No Model.) hetS-Sheet l. G. A. GOODSON. MATRIX MAKNG MACHINE.

No. 414,400. Patented Nov. 5, 1889.

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G. A. GO'ODSDN.k MATRIX MAKING MACHINE.

Patented Nov. 5, 1889.

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3 Sheets Sheet 3.

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G. A. GOODSON. MATRIX MAKING MAoHNE.

No. 414,400. Patented Novp, 1889-.

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UNITED STATES PATENT OFFICE..

GEORGE A. GOODSON, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO THEMINNEAPOLIS ELECTRO MATRIX COMPANY, OF SAME PLACE.

MATRIX-MAKING MACHINE.

SPECIFICATION forming' part of Letters Patent No; 414,400, datedNovember 5, 1889.

Application filed March 20, 1888. Serial No. 267,795. (No model.)

- chines, of which the following is a specificaof the entire machine.

tion, reference being had to the accompanying drawings.

My invention relates to matrix making, and is in the nature of animprovement on the invention set forth in an application, Serial No.

239,735, tiled May 31, 1887, and my former application, Serial No.259,257}/iiled December 28, 1887. The general principle of theconstruction and operation is substantially the saine as in my formerapplications; but the mechanism for forcing the type-die into the matrixmaterial when at the common printingpoint is radically different, anelectrically-actuated depressing device having been substituted for theeccentric cam shown in my last preceding application; There are alsosome minor changes in the other electrical features. I

My invent-ion consists inthe construction hereinafter fully described,and particularly pointed out in the claims.

In the drawings, like letters referring to like parts throughout, FigureI is a plan view Fig. Il is a vert-ical cross-section on the line X X ofFig. I. Fig. III is au end view of Fig. II, and Figs. IV and V aresectional views of modifications. Fig. VI is a partiallongitudinalvertical section of the machine. Fig. VII is an enlarged View of theautomatic circuit-controller.

l is the bed-plate; 2, the character-board or index-plate, provided witha series of aper.

riage; 7, the cap plate; 8, the rack-bar at.- tached to the matriX-carriage; 9, the cylindrical ratchet-wheel,provided with a pinionengaging said rack-bar; 10, the lever for raising the ratchet-Wheel outof engagement With its operating-pawls5 M M M, the series of independentmagnets; N N N, their respective armatures; P P P, their respectivepawls; 1l, the series of brackets for supporting the free ends of thearmatures; 12, the series of retracting-springs; 13, the series ofpawl-stops; 14, the lockingpawl; 15, the three -point switch normallyclosing a circuit through the -magnet M; 16 and' 17, the circuit-closersfor closing circuits through the magnets M and M, respectively, and 18is the plunger, all substantially as in my last preceding application.

. The switch 15 is composed of the pivoted armatureelever R, havingcontact-points on its free end, the electro-magnet S, contactstrips 'rr, and the retraction-spring Q. The circuit-closer 16 is composed of thepivote-d armature-lever R', having a contact-point on one side of itsfree end, the electro-magnet S the retraction-spring Q', thecontact-strip r", and the stop q, and the circuit-closer 17 is composedof pivoted armature R, having a contact-point on one side of its freeend, electro-magnet S, the retraction-spring Q, the contact-strip fr,and the stop q, all identical with my former machine.

The electric circuits and their connections are partly the same andpartly different, as hereinafter described.

I will now describe my improvements.

To the cap-plate 7, I secure in any suitable Waya proper support 19 fora toggle-lever 2O.y 1 1 The lowerend of one arm of thislever is pivot-vally secured to the plunger 1S, and the upper end of the other arm ispivotally secured to a cross-rod 21 in the supporting-standard 19. Thiscross-rod constitutes the base of resistance for the toggle-lever, thelower end being IOO The support 19 must be made in such a manner as toallow the free movement of the toggie-lever.

On some suitable support, as 23, is mounted a constantly-running shaft24,. arranged 'at right angles to the vertical plane of the toggle-levermovement. To this shaft is iixed a iiy-wheel 26 and. a driving-pulley25, coupled to a source oi' motion. (Not shown.) The shaft is kept inconstant motion. On the shaft 24 is also a crank or eccentric (acrank-disk being shown) 27. As shown, the support 23 for thiscrank-shaft 24 is a heavy plate` secured to the cap-plate 7 and thelower part of the standard 19. Between the crank-shaft and thetoggle-lever, with one end in proximity to the toggle-lever when in itsvertical position, is placed a'solenoid 28, having a hollow axis. Asshown, this is secured to the plate 23 and the standard 19, and anopening or hole is formed through this standard in line with the axis ofthe magnet. Two separate pieces ,of soft metal 29 and 30 constitute thecore and armature of this magnet. The armature 29 is comparativelyshort, and its outer end is directly or indirectly pivotally connectedto the toggle-lever 20. As shown, this connection is made through abrass section 31, which is screwed into the soft-metal block 29 at oneend and pivotally attached to the toggle-lever at the other. The core30, as shown, is comparatively long, and its outer end is connected bythe connecting-rod 32 to the crank-pin on t-lie crank-disk 27. Vlien thecrank and the toggle-lever are in their extreme positions at theirfarthest distance apart, the inner ends of the parts 29 and 30areseparated a distance about equal to the throw ot' the crank, and whenthe crank has moved around one hundred and eighty degrees into itsnearest position to the toggle the inner ends of the two parts areeither together or in close proximity. It is necessary at least thatthey should come within the field of each others attraction when thecrank is nearest to the toggle. It is evident that if a current ofelectricity be passed through the solenoid 28 the parts 29 and 30 willcling together and be reciprocated by the crank on the shaft 24.

33 is a spring, which may be attached at one end to some fixed support,as the standard 19, and at the other to the toggle-lever, for thepurpose of retracting it to its normal position after a stroke. Thisspring, however, is not necessary, as the movement imparted to the part30 by the crank will force the toggle back to its normal position.

Tomake sure thatthe part 29 will be set free and the toggle be allowedto return to its normal or inoperative position after every stroke, thetoggle is made to break its own actuatingcircuit when it reaches itsvertical positionby operating a suitable circuit-breaker. A mechanismfor the purpose is shown at 34, 35, 36, 37, and 38, of which 34 is apivoted armaturei lever having an arm projecting into the path andhaving contact with the contact-strip 37.

The magnet 35 may be supported in anysuitable way and in any convenientposition. As shown it is supported from the standard 19 and the endsupport 40 of the solenoid 28.

It is desirable to have the base of resistance 21 of the toggleadjustable to a limited extent for varying the dept-h of die-impression.I do this by .mak ing the holes or seats in which the rod 21 restsslightly greater in vertical diameter than the dialneter of the rod andproviding set-screws 41,1wl1ich will work in screwthreaded seats in thetop of the standard 19, for varying the points of resistance,'and Iprovide wedges 43 for holding up the rod.

This construction for depressing the dies i The.

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ures that the solid arrow-head lines, the

broken arrow-head lines, and the dotted lines respectively representdifferent circuits, the currents in each case passing in the directionof the arrows.

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The full arrow-head lines represent-alocal circuit and its branchesthrough the indexplate and the electro-magnets SS, and S. Of these thereis a common outgoing conductor B from a source of electricity (notshown) through the magnet S to the bed-plate 1, and through the same tothe platinum point on the key-lever 3, and as many return-wires as thereare different classes of type-dies, the

' platinum points in the respective characterseats on the index-plateconnecting with one or the other of these return-wires, according to thenumber of units of space required, as is fully set out in my formerapplications. In the drawings three return-Wires are shown, of which Crepresents the return-wire for the one-unit group of characters andpasses directly from the index-plate back to the'source. C representsthe return-wire of the two-unit group and leads from the charaeterstothe magnet S', and thence to the source, and C represents' thethree-unit wire, leading from' the character-board to the magnet S andthence to source.

rlhe dotted'lines represent circuits passing through thelcircuit-closers 16 and 17 for operating the feed-magnets 1W' and M. Ofthese, D represents the common outgoing wi re from source ofelectricity, (not shown D', the branch passing through fr, R', to M; Dthe branch through r, R", to M E, the common return-wire, and E and Eits branches from M and M, respectively.

The broken arrow-lines represent an independent circuit always passingvthrough the three-point switch 15, and which in the normal position otthe switch isclosed through the magnet 35 and the feed-magnet M, butwhich may be closed through the solenoid 28 and the circuit-breakingmechanism 37, 38,

' and 39. Of the wires making this circuit, FV

is the common outgoing wire from source of electricity (not shown) tothe switch-lever R. F is the branch from the contact fr through themagnet 35 and the feed-magnet M, vF, the branch'from the' contact frthrough the magnet 28 and the circuit-breaking mechanism 37, 38, and 39.G is the branch of the return-wire from magnet M, and G is the returnbranch from the contact 37 on the circuit-breaker.

The operation is as follows: The normal condition of the .branch F G ofthe local circuit F G is closed at r through the magnets 35 and M, whilethe .normal condition of the branch F G through solenoid 28 and thecircuit-breaking mechanism 37, 38, and 3,9 is open atr. The normalcondition of the local circuit and its branches B C, &c.,through thecharacter-board is open at the contactpoints on the character-board. Thearmature N is therefore drawn to its magnet M, and the armature is drawnto the magnet 35, and the contacts 37 and 38 are together. Now, when thelocal circuit through the magnetS is closed by the selection of acharacter on the characterhoard, the branch F G through 35 and M isbroken at the contact fr, setting free the armatures 34 and N andclosing the branch F G through the solenoid :28 and the circuit-breakingmechanism 37, 38, and 39. The

'solenoid 28 is therefore magnetized foran instant and the toggle isdrawn to its vertical position, making the stroke on the type-die. O11reaching its vertical position the toggle strikes the projectingl arm ofthe armature 34:, separating the contacts 37 and 38 and Abreaking thecircuit F G at that point.

magnet-s 35 and M are magnetized, drawing up the armature 34 and N, andthrough the pawl P and its connections moving the matrix material alongthe line a distance of one space-unit. At the same time that the arma-.pendent armature 29.

ture 34 is drawn to its magnet 35 the contacts 37 and 38 are broughttogether by the circuit F G through these contacts, and the solenoid 28is, in its normal position, open at r. Y The act of selecting thecharacter on the index-plate or character-board brought the type-die tothe common printing-point directly under the plunger 18, in virtue ofthe construction as fully set forth in my tormer application. As stated,the matrixrcarriage is moved forward one unit by the normally-closedbranch F G of the local circuit through the feed-magnet M whenever thekey is withdrawn from the contact or the character-board. This occurs,therefore,while the hand is being moved to select the next character. lfthe character selected requires more than one unit of space, the branchthroughl" the proper circuit closer will be closed and another feedmagnet will be brought into play, moving the matrix material therequisite additional distance. The feedmagnets, as shown, are three innumber, the

magnets M angl M each throwing its respecti ive pawl through a one-unitspace, while the magnet M moves its awl two units of s ace.

lf, therefore, a two-unit character is selected, the branch localcircuit B C is closed through magnet S', which draws the armature-leverR to contact r and closes the circuit D E through the feed-magnet M',and in a similar manner a three-unit character closes B C" through S,drawing up R to r, closing the circuit D E through M. Additionalfeed-magnets and circuit-closers may be used, if desired, but areunnecessary, as the three sets arranged as herein set forth make acomplete system.

It must be understood that the gist of the the invention for producingthe depression of the plunger and the die lies in theconstantly-reciprocating core 30 and the inde- A stop-and-start motion,which is very quick to start and very quick to stop, is thus obtained.This is something very difficult to obtain. The power which reciprocatesthe core 30 is made to do the work of depressing the die. The magneticpower simply holds the core and armature together. A comparatively-smallmagnet and comparatively-small core and armature may therefore be used,and the time required to'magnetize and demagnetize is correspondinglyshort. It' attempt were made to operate the depressing device solely bymagnetic attraction, the magnet and its armature would have to be solarge as to make demagnetization very slow. It would take it too long tolet go. By my construction contacts cannot be made so fast that thedepressing device will not be actuated and let go after the stroke.

Modifications can be readily made in the means of communicating themotion from the armature 29. For example, instead of a toggle-lever Imay use an ordinary-pivoted lever 44 and have its free end bear againstan IIO TIS

extended head on the plunger, as shown in Fig. IV; or I may dispensewith a lever altogether and substitute a cam, as shown in Fig. V, thecam 48 being operated from the independent movable armature 29 throughany suitable connection, as the rack 47. The toggle-lever 20, thepivoted lever 44, and the cam 48 may be broadly designated as de--pressing devices, and are so referred vto in some of the claims hereinset forth. 'Other minor modifications in other features of theconstruction may be made Without 4departing from the spirit of myinvention.

44L is a tension device consi-Sting of a sets'cre'w andcoiled spring,which may be used,

if desired, for applying a variable Aresistance to the c'ircuitfbreakerarmature 34 by van increase or decrease of pressure upon one side of thelever 44 about its pivot.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is 'as follows:

1. In a matrix-making machine, the combination, with the dies, of asQlenoid, a constantly-reciprocating core within the same, a movablearmature within the magnet-field of said core and Aadapted to depressone of said dies when attracted 'by the reciprocating core, and meansfor making and breaking the circuit of said solenoid, as set forth.

2. Ina matrix-making machine, the combination, with the dies, of asolenoid, a constantly-reciprocating core Within the same, atoggle-lever provided with an armature within the magnetic field of thereciprocating core and adapted to depress one of said dies when operatedby the attraction of the core, and a circuit-controller in the circuitof the solenoid,

as described.

3. The combination, with a matrix-material carriage, of a die-depressingdevice, a die-carriage for aligning type-dies under said depressingdevice, a solenoid having a constantly-reciprocatin g core coupled to asource of motion, an independent movable armature Within the iield ofsaid core and connected to said die-depressing device, and means formaking and breaking an electric circuit through said solenoid,substantially as described.

4. The combination, with a matrix-material carriage, of a plungermounted in a suitable guide, a die-carriage intermediate said carriageand plunger, a toggle-lever having one end secured to a base ofresistance and the other to said plunger, a solenoid having a movablecore, an independent movable yarmature within the iield of said core andattached to said toggle-lever, a constantlyrunning shaft, aconnecting-rod from the crank onsaid shaft to said Corey-means forclosing an electric circuit through said solenoid, anda circuit-'breakerin said solenoid circuit operated by said toggle-lever, substantially asdescribed.

5. The combination, with a matrix-material carriage, ofelectro-magnetically-controlled feeding devices for the same, adiecarriage, an electro-magnetically-controlled die-depressing device,electric connections for said feeding devices, including a circuithaving one branch normally Xclosed through one of said feeding devicesand another branch normally open through the solenoid of thedie-depressing device, and a switch for shifting the current from thefeedingmagnet to that of `the depressing .device,sub stantially asdescribed.

6. The-combination, with a `matrix-material carriage, ofelectro-magnetically-controlled feeding devices for the same, an.electro-magnetic die-depressing device, electric connections for saidfeeding devices, includinga circuit having one branch normally closedthrough one of said feeding devices and another branch normally openthrough the solenoid of the die-depressing device, an electric switchfor shifting the current from the feeding-magnet to the solenoid of thedie-depressing device, and a circuit-controller for'making and breakingan electric circuit through said switch, substantially as described.

7. The combination, with a matrix-material carriage, of electro-magneticfeeding devices for the same, an electro-magnetic diedepressing device,including a circuit having one branch normally closed through one ofsaid feeding devices and another branch normally open through saidelectromagnetic die-depressing device, an electric switch for shiftingthe current from the 'feeding device to the die-depressing device, a barprovided at one end with a die-carriage and at the other end with ahand-key having a contactpoint, an index-plate having key-seatscorresponding` to said type-.dies and having contact-points adjacentthereto, and an electric circuit normally open through said switch andthe contact-points on said indexplate, substantially as described.

8. The combination, with a matrix-material carriage, of electro-magneticfeeding devices for the same, a die-carriage, an electroopen branchoperated by said die-depressing device, 'an-d an electric circuitrcloseron said normally-closed branch operating -to restore saidcircuit-breaker to its normal position,

substantially as described.

GEORGE A. GOODSON. In presence of- J As. F. WILLIAMSON, EMMA F. ELMoRE.

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